WATER RESOURCES

___________ involves prevention of runoff and

storage and recharge of groundwater through

various methods like percolation tanks, recharge

wells, etc.

• WATERSHED MANAGEMENT

• RAINWATER HARVESTING

• UNDERGROUND PRESERVATION

The area from which rainfall flows into a river, lake

or reservoir is called a__________ area.

• CONNECTING

• CATCHMENT

• FLOODING

An area of shallow body of water separated from

the sea by barrier islands or reefs is known as

• BACKWATER

• CATCHMENT AREA

• LAGOONS

• LAKE

__________ can be defined as a process that extracts

minerals from saline water.

• SALINATION

• DESALINATION

• SATURATION

• DETOXICATION

Sewage disposal, urban run-off, toxic effluents from

industries,run-off over cultivated lands and nuclear

power plants are examples of :

• WATER SOURCE

• WATER STORAGE

• WATER RESIDUE

• WATER POLLUTANTS

Name the board that monitors the water quality of

national aquatic resources.

• The Central Pollution Centre Board

• The Central Pollution Communication Board

• The Central Pollution Control Board

Bhakra- Nangal, Hirakud, Damodar Valley,

Nagarjuna Sagar, Indira Gandhi Canal Project, etc,

are:

• PICNIC SPOT

• TOURIST SPOT

• MULTI PURPOSE RIVER VALLEY PROJECTS

• IRRIGATION POINTS

Read the case study given below and answer the

questions that follow:

Available water resources are degrading rapidly.

The major rivers of the country generally retain

better water quality in less densely populated

upper stretches in hilly areas. In plains, river

water is used intensively for irrigation, drinking,

domestic and industrial purposes. The drains

carrying agricultural (fertilizers and insecticides),

domestic (solid and liquid wastes), and industrial

effluents join the rivers. The concentration of

pollutants in rivers, especially remains very high

during the summer season when flow of water is

low. The Central Pollution Control Board (CPCB)

in collaboration with State Pollution Control

Boards has been monitoring water quality of

national aquatic resources at 507 stations. The data

obtained from these stations show that organic and

bacterial contamination continues to be the main

source of pollution in rivers. The Yamuna river

is the most polluted river in the country between

Delhi and Etawah. Other severely polluted rivers

are: the Sabarmati at Ahmedabad, the Gomti at

Lucknow, the Kali, the Adyar, the Cooum (entire

stretches), the Vaigai at Madurai and the Musi of

Hyderabad and the Ganga at Kanpur and Varanasi.

Ground water pollution has occurred due to high

concentrations of heavy/toxic metals, fluoride and

nitrates at different parts of the country.

Why the available water resources are degrading

rapidly?

(A) Border conflicts

(B) Concentration of pollutants is very high

(C) Drying up of water bodies

(D) None of the Above

• A

• B

• C

• D

__________ means using treated waste water for

other purposes.

(A) Reclaimed waste water

(B) Relieved waste water

(C) Reclaimed waste water

(D) Reclaimed waste water

• A

• B

• C

• D

An ________economy is a type of economy that

relies primarily on agricultural industry including

livestock farming or crop production.

(A) Traditional

(B) Agrarian

(C) Old

(D) Under developed

• A

• B

• C

• D